<template>
  <div>
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <!-- 面包屑导航 -->
          <ul class="fl sui-tag">
            <!-- 分类面包屑 -->
            <li class="with-x" v-if="searchParams.categoryName">{{searchParams.categoryName}}<i @click="removeCategoryName">×</i></li>
            <!-- 关键字的面包屑 -->
            <li class="with-x" v-if="searchParams.keyword">{{searchParams.keyword}}<i @click="removeKeyWord">×</i></li>
            <!-- trademark面包屑 -->
            <li class="with-x" v-if="searchParams.trademark">{{searchParams.trademark.split(":")[1]}}<i @click="removeTradeMark">×</i></li>
            <!-- 平台售卖的属性值展示 -->
            <li class="with-x" v-for="(attrValue,index) in searchParams.props" :key="index">{{attrValue.split(":")[1]}}<i @click="removeAttr(index)">×</i></li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @trademarkInfo="trademarkInfo" @attrInfo="attrInfo"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <!-- 价格结构 -->
              <ul class="sui-nav">
                <li :class="{active:isOne}" @click="changeOrder('1')">
                  <a>综合<span v-show="isOne" class="iconfont" :class="{'icon-long-arrow-up':isAsc,'icon-long-arrow-down':!isAsc}"></span></a>
                </li>
                <li :class="{active:!isOne}"  @click="changeOrder('2')">
                  <a>价格<span v-show="!isOne" class="iconfont" :class="{'icon-long-arrow-up':isAsc,'icon-long-arrow-down':!isAsc}"></span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 销售产品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${good.id}`"><img v-lazy="good.defaultImg" /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥&nbsp;&nbsp;</em>
                      <i>{{good.price}}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a target="_blank" href="item.html" :title="good.title">{{good.title}}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="javascript:void(0);" class="sui-btn btn-bordered btn-danger" @click="addShopcar(good.id,1)">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页 -->
          <Pagination :pageNo="searchParams.pageNo" :pageSize="searchParams.pageSize" :total="total" :pagerCount="5" @getPageNo="getPageNo"></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { mapGetters, mapState } from 'vuex';
  import SearchSelector from './SearchSelector/SearchSelector'
  export default {
    name: 'Search',
    data(){
      return{
        //带给服务器的参数
        searchParams:{
          //一级分类id
          "category1Id": "",
          //二级分类id
          "category2Id": "",
          //三级分类id
          "category3Id": "",
          // 分类名字
          "categoryName": "",
          //关键字
          "keyword": "",
          //排序
          "order": "1:desc",
          //分页器，代表当前页
          "pageNo": 1,
          //代表展示几页
          "pageSize":10,
          //平台售卖属性操作带的参数
          "props": [],
          //品牌
          "trademark": ""
        }
      }
    },
    components: {
      SearchSelector
    },
    methods:{
      //向服务器发送请求获取search数据（根据参数返回不同的数据进行展示）
      getData(){
        //派发action
        this.$store.dispatch('getSearchList',this.searchParams);
      },
      // 删除分类的名字
      removeCategoryName(){
        // 点击x后删除分类名，置空
        this.searchParams.categoryName= undefined;
        this.searchParams.category1Id = undefined;
        this.searchParams.category2Id = undefined;
        this.searchParams.category3Id = undefined;
        //再次向服务器发送请求 
        this.getData()

        //地址栏也需要改,路由自己跳自己
        //当我们有params参数时也要带着
        this.$router.push({name:'search',params:this.$route.params})
       
      },
      // 删除关键字面包屑导航
      removeKeyWord(){
        //通知兄弟组件header清楚关键字
        this.$bus.$emit("clear");
        //给服务器带的参数searchParams的keyword置空
        this.searchParams.keyword = undefined;
        //再次发请求
        this.getData()
        //地址栏也需要改,路由自己跳自己
        //当我们有query参数时也要带着
        this.$router.push({name:'search',query:this.$route.query})
      },
      // 删除trademark面包屑
      removeTradeMark(){
        //置空searchParams上的trademark
        this.searchParams.trademark = undefined;
        //再次发请求
        this.getData();
      },
     //拿到子组件传递过来的参数trademark
      trademarkInfo(trademark){
        //重新整理新参数给服务器
        this.searchParams.trademark=`${trademark.tmId}:${trademark.tmName}`
        //再次发请求
        this.getData();
     },
     //拿到子组件传递过来的平台属性值参数attr
      attrInfo(attr,attrValue){
        // ["属性ID:属性值:属性名"]
        //重新整理新参数给服务器
        let prop=`${attr.attrId}:${attrValue}:${attr.attrName}`
        //向props数组中添加数据
        //数组去重
        if(this.searchParams.props.indexOf(prop)==-1){
          this.searchParams.props.push(prop);
        }
        //再次发请求
        this.getData();
      },
      //删除平台售卖属性
      removeAttr(index){
        //再次整理参数，根据点击元素的下标删除当前元素
        this.searchParams.props.splice(index,1);
        //再次发请求
        this.getData();
      },
      //综合/价格排序
      changeOrder(flag){
        //flag形参代表用户点击的是综合还是价格1/2
        //这里获取到的是最开始的状态
        let originFlag=this.searchParams.order.split(':')[0];
        let originSort=this.searchParams.order.split(':')[1];
        //准备一个新的order属性值
        let newOrder='';
        if(flag==originFlag){
          newOrder=`${originFlag}:${originSort=='desc'?'asc':'desc'}`
        }else{
          newOrder=`${flag}:${'desc'}`
        }
        this.searchParams.order=newOrder;
         //发请求
        this.getData();
      },
      //分页获取当前第几页
      getPageNo(pageNo){
        //整理参数带给服务器
        this.searchParams.pageNo=pageNo;
        //请求服务器
        this.getData();
      },
      //加入购物车的回调函数
      async addShopcar(skuId,skuNum){
        try {
           //1.派发action 发请求  ---将产品加入到数据库（通知服务器）
          await this.$store.dispatch('reqAddOrUpdateShopCart',{skuId,skuNum});
          //派发action获取当前点击的商品数据，通过vuex把数据存储到了state,getters计算属性获取了skuInfo商品信息  
          await this.$store.dispatch('getDetailList',skuId)
          //2.服务器存储成功  --进行路由跳转
          //产品信息数据【比较复杂】通过会话存储（不持久化，会话结束数据在消失）
          //本地存储和会话存储，一般存储的是字符串,不能存储对象，所以咱们通过json.stringify进行转换
          //更新sessionStorage存储的数据 跳转页面展示商品信息
          sessionStorage.setItem('SKUINFO',JSON.stringify(this.skuInfo))
          this.$router.push({name:'addcartsuccess',query:{skuNum}})
        } catch (error) {
          //3.失败，给提示
          alert(error.message);
        }
        
        
      }
    }
    ,
    //组件挂在之前，我们去修改数据
    beforeMount(){
      //复杂写法
      // this.searchParams.category1Id=this.$router.query.category1Id
      // this.searchParams.category2Id=this.$router.query.category2Id
      // this.searchParams.category3Id=this.$router.query.category3Id
      // ......
      //简单写法 利用es6语法合并对象Object.assign()
      Object.assign(this.searchParams,this.$route.query,this.$route.params)
    },
    //mounted这个生命周期函数只会执行一次，咱们这个搜索事项要执行多次并且带参传递搜索，所以咱们派发不应放在这里
    created(){
      //在发请求之前带给服务器的参数【searchParams参数发生变化有数值带给服务器】
      // 我们可以调用一次这个函数让页面初始化就有展示数据
      this.getData();
    },
    computed:{
      ...mapGetters(['goodsList','skuInfo']),
      isOne(){
        return this.searchParams.order.indexOf('1')!=-1;
      }
      //省略代码直接取反就可以
      // ,
      // isTwo(){
      //   return this.searchParams.order.indexOf('2')!=-1;
      // }
      ,
      isAsc(){
        return this.searchParams.order.indexOf('asc')!=-1;
      }
      //省略代码直接取反就可以
      // ,
      // isDesc(){
      //   return this.searchParams.order.indexOf('desc')!=-1;
      // }
      ,
      ...mapState({
        total:state=>state.search.searchList.total
      })
    },
    //数据监听：监听组件身上的属性的属性值变化
    watch:{
      //监听路由的信息，是否发生变化，如果发生变化再次发请求
      $route(newValue,oldValue){
        //先把用户前面存储的1|2|3级别ID清除
        //发ajax的时候,属性值为undefined,甚至参数K都不携带了【10个搜索条件,可有可无的】
        this.searchParams.category1Id = undefined;
        this.searchParams.category2Id = undefined;
        this.searchParams.category3Id = undefined;
        //再次发请求之前，重新整理新参数给服务器
        Object.assign(this.searchParams,this.$route.query,this.$route.params)
         //再次发请求
        this.getData();
      }
    }
  }
</script>

<style lang="less" scoped>
  .main {
    margin: 10px 0;

    .py-container {
      width: 1200px;
      margin: 0 auto;

      .bread {
        margin-bottom: 5px;
        overflow: hidden;

        .sui-breadcrumb {
          padding: 3px 15px;
          margin: 0;
          font-weight: 400;
          border-radius: 3px;
          float: left;

          li {
            display: inline-block;
            line-height: 18px;

            a {
              color: #666;
              text-decoration: none;

              &:hover {
                color: #4cb9fc;
              }
            }
          }
        }

        .sui-tag {
          margin-top: -5px;
          list-style: none;
          font-size: 0;
          line-height: 0;
          padding: 5px 0 0;
          margin-bottom: 18px;
          float: left;

          .with-x {
            font-size: 12px;
            margin: 0 5px 5px 0;
            display: inline-block;
            overflow: hidden;
            color: #000;
            background: #f7f7f7;
            padding: 0 7px;
            height: 20px;
            line-height: 20px;
            border: 1px solid #dedede;
            white-space: nowrap;
            transition: color 400ms;
            cursor: pointer;

            i {
              margin-left: 10px;
              cursor: pointer;
              font: 400 14px tahoma;
              display: inline-block;
              height: 100%;
              vertical-align: middle;
            }

            &:hover {
              color: #28a3ef;
            }
          }
        }
      }

      .details {
        margin-bottom: 5px;

        .sui-navbar {
          overflow: visible;
          margin-bottom: 0;

          .filter {
            min-height: 40px;
            padding-right: 20px;
            background: #fbfbfb;
            border: 1px solid #e2e2e2;
            padding-left: 0;
            border-radius: 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

            .sui-nav {
              position: relative;
              left: 0;
              display: block;
              float: left;
              margin: 0 10px 0 0;

              li {
                float: left;
                line-height: 18px;

                a {
                  display: block;
                  cursor: pointer;
                  padding: 11px 15px;
                  color: #777;
                  text-decoration: none;
                }

                &.active {
                  a {
                    background: #e1251b;
                    color: #fff;
                  }
                }
              }
            }
          }
        }

        .goods-list {
          margin: 20px 0;

          ul {
            display: flex;
            flex-wrap: wrap;

            li {
              height: 100%;
              width: 20%;
              margin-top: 10px;
              line-height: 28px;

              .list-wrap {
                .p-img {
                  padding-left: 15px;
                  width: 215px;
                  height: 255px;

                  a {
                    color: #666;

                    img {
                      max-width: 100%;
                      height: auto;
                      vertical-align: middle;
                    }
                  }
                }

                .price {
                  padding-left: 15px;
                  font-size: 18px;
                  color: #c81623;

                  strong {
                    font-weight: 700;

                    i {
                      margin-left: -5px;
                    }
                  }
                }

                .attr {
                  padding-left: 15px;
                  width: 85%;
                  overflow: hidden;
                  margin-bottom: 8px;
                  min-height: 38px;
                  cursor: pointer;
                  line-height: 1.8;
                  display: -webkit-box;
                  -webkit-box-orient: vertical;
                  -webkit-line-clamp: 2;

                  a {
                    color: #333;
                    text-decoration: none;
                  }
                }

                .commit {
                  padding-left: 15px;
                  height: 22px;
                  font-size: 13px;
                  color: #a7a7a7;

                  span {
                    font-weight: 700;
                    color: #646fb0;
                  }
                }

                .operate {
                  padding: 12px 15px;

                  .sui-btn {
                    display: inline-block;
                    padding: 2px 14px;
                    box-sizing: border-box;
                    margin-bottom: 0;
                    font-size: 12px;
                    line-height: 18px;
                    text-align: center;
                    vertical-align: middle;
                    cursor: pointer;
                    border-radius: 0;
                    background-color: transparent;
                    margin-right: 15px;
                  }

                  .btn-bordered {
                    min-width: 85px;
                    background-color: transparent;
                    border: 1px solid #8c8c8c;
                    color: #8c8c8c;

                    &:hover {
                      border: 1px solid #666;
                      color: #fff !important;
                      background-color: #666;
                      text-decoration: none;
                    }
                  }

                  .btn-danger {
                    border: 1px solid #e1251b;
                    color: #e1251b;

                    &:hover {
                      border: 1px solid #e1251b;
                      background-color: #e1251b;
                      color: white !important;
                      text-decoration: none;
                    }
                  }
                }
              }
            }
          }
        }

        
      }
    }
  }
</style>